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Finding the Fourth Proportional to 40,750.80, 56,241 and 38,979.24

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Solution

The fourth proportional to 40,750.80, 56,241 and 38,979.24 is: 53,796.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,750.80 : 56,241 = 38,979.24 : x
  2. Step 2: Convert to fraction form
    40,750.80/56,241 = 38,979.24/x
  3. Step 3: Cross multiply
    40,750.80x = 56,241 × 38,979.24
  4. Step 4: Simplify right side
    40,750.80x = 2,192,231,436.84
  5. Step 5: Solve for x
    x = 2,192,231,436.84/40,750.80
  6. Step 6: Final answer
    x = 53,796.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.